EP0360013A1 - Installation de freinage à anti-blocage pour véhicules automobiles - Google Patents

Installation de freinage à anti-blocage pour véhicules automobiles Download PDF

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Publication number
EP0360013A1
EP0360013A1 EP89115398A EP89115398A EP0360013A1 EP 0360013 A1 EP0360013 A1 EP 0360013A1 EP 89115398 A EP89115398 A EP 89115398A EP 89115398 A EP89115398 A EP 89115398A EP 0360013 A1 EP0360013 A1 EP 0360013A1
Authority
EP
European Patent Office
Prior art keywords
motor vehicle
simulator
housing
brake system
lock motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89115398A
Other languages
German (de)
English (en)
Other versions
EP0360013B1 (fr
Inventor
Manfred Rüffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co OHG
Original Assignee
Alfred Teves GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Teves GmbH filed Critical Alfred Teves GmbH
Publication of EP0360013A1 publication Critical patent/EP0360013A1/fr
Application granted granted Critical
Publication of EP0360013B1 publication Critical patent/EP0360013B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/08—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on brakes or brake systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/565—Vacuum systems indirect, i.e. vacuum booster units characterised by being associated with master cylinders, e.g. integrally formed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/44—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
    • B60T8/447—Reducing the boost of the power-assist booster means to reduce brake pressure
    • B60T8/448—Reducing the boost of the power-assist booster means to reduce brake pressure the power-assist booster means being a vacuum or compressed air booster
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/92—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action
    • B60T8/94—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action on a fluid pressure regulator

Definitions

  • the simulator housing is arranged stationary on the amplifier housing and has a hydraulic chamber, the connection of which can be released with a pressure-free pressure medium reservoir and in which one with the movable wall in Active connection of the standing simulator piston is guided axially displaceably, on which the input member is supported.
  • This measure brings a significant increase in the functional reliability of the brake system.
  • the stationary arrangement of the simulator housing with the control valve housing guided therein makes it possible to use a weaker input element return spring.
  • a stationary simulator housing 5 On the brake pedal side half of the booster housing there is a stationary simulator housing 5, in which a hydraulic chamber 50 is formed, which is connected to the pressure medium reservoir 7 via a schematically illustrated line. This connection can be shut off or released by means of a solenoid valve 8, which can be excited via a control line 38.
  • a pneumatic space 60 is also formed in the interior of the simulator housing 5 a pneumatic line 46 and a valve arrangement 12 can optionally be connected to the vacuum source 42 or the atmosphere.
  • the valve arrangement 12 is formed by an electromagnetically operable 3/2-way valve, the vacuum inlet connection of which is connected to the vacuum source 42 via a second check valve 41.
  • the 3/2-way valve can be actuated either by the central control electronics 33 via a control line 43 or by removing an ignition key present in the motor vehicle, which is shown schematically in FIG. 1 and is provided with the reference number 6.
  • the vacuum brake booster 1 has two shell-shaped housing parts 48, 49 assembled with their open sides, which form an amplifier housing 10.
  • the one on the left in Fig. 2, with one not closer Pneumatic connection shown housing part 48 is fixedly connected to the tandem master cylinder 2, while the right housing part 49 carries the simulator housing 5, which holds a control valve housing 63 of the vacuum brake booster 1 slidably and sealed out.
  • the hydraulic chamber 50 mentioned above in connection with FIG. 1 is delimited by a simulator piston 53 which is displaceably guided therein and is operatively connected to the movable wall 70.
  • the hydraulic connection of the chamber 5 to the pressure medium reservoir 7 (FIG. 1), which can be shut off or released by means of the electromagnetic valve 8, is formed by channels 52 formed in the simulator housing 5.
  • the simulator piston 53 is preferably provided with an axial recess 54 which a Simulator spring package 55 receives, which is formed by two coaxially arranged compression springs 56,57 of different lengths.
  • the arrangement of the two compression springs 56, 57 is preferably such that the longer, radially external compression spring 56 is clamped between the bottom of the recess 54 and a plate sleeve 58 held in the control valve housing 63, while the shorter, radially internal compression spring 57 is clamped in the recess 54 is centered by a radial collar 65 of a guide sleeve 59 which extends into an axial recess 66 of the plate sleeve 58 and is pushed onto a pin 64 of the simulator piston 53.
  • the pneumatic chamber 60 (FIG. 1) is delimited in the simulator housing 5 by the simulator piston 53 and is divided into a first pressure chamber 61 and a second pressure chamber 62 by means of a membrane wall 68 fastened to the control valve housing 63, which is formed in the brake release position by means of the control valve housing 63, Channels not specified in more detail are connected to one another, the second pressure chamber 62 being connected to the second working chamber 72 of the vacuum brake booster 1 by means of a pneumatic connection 78 formed in the simulator housing 5.
  • the negative pressure of the negative pressure source 42 prevails in the two working chambers 71 and 72, so that the movable wall 70 is pressure-balanced and is held against the stop on the rear housing part 49 by the return spring 76.
  • the same negative pressure also prevails in the pneumatic chamber 60 in the simulator housing 5, the connection 52 between the hydraulic chamber 50 and the unpressurized pressure medium reservoir 7 being blocked.
  • the pressure built up in the master cylinder 2 must be at least partially reduced. It is assumed that the force acting on the brake pedal 3 remains constant. After the above-mentioned blocking tendency has been reported to the central electronic control unit 33 by one of the sensors, it generates switchover signals which cause the valve arrangement 11 to be switched over and thus to vent the working chamber 71 on the master cylinder side of the vacuum brake booster 1. Since there is now no pressure difference acting on the movable wall 70 (the brake pedal-side working chamber 72 is still under atmospheric pressure), the resulting reinforcing force also disappears. The described removal of the boosting force consequently results in a pressure reduction in the master brake cylinder 2.
  • the use of the pressure sensor 15 ensures that when the pressure falls below a certain level, the control function of the brake system according to the invention is switched off by the central control electronics 33. At the same time, the output signal of the pressure sensor 15 causes the electromagnetic valve 8 to switch over, that releases the hydraulic connection (channels 52) between the hydraulic chamber 50 and the pressure medium reservoir 7. Since the simulator piston 53 can now be moved, the "remaining" amplifying force is supported by the actuating force on the brake pedal. Under these circumstances, slip control can no longer take place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Braking Systems And Boosters (AREA)
  • Regulating Braking Force (AREA)
EP89115398A 1988-09-17 1989-08-21 Installation de freinage à anti-blocage pour véhicules automobiles Expired - Lifetime EP0360013B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3831667 1988-09-17
DE3831667A DE3831667A1 (de) 1988-09-17 1988-09-17 Blockiergeschuetzte kraftfahrzeugbremsanlage

Publications (2)

Publication Number Publication Date
EP0360013A1 true EP0360013A1 (fr) 1990-03-28
EP0360013B1 EP0360013B1 (fr) 1993-03-10

Family

ID=6363165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115398A Expired - Lifetime EP0360013B1 (fr) 1988-09-17 1989-08-21 Installation de freinage à anti-blocage pour véhicules automobiles

Country Status (2)

Country Link
EP (1) EP0360013B1 (fr)
DE (2) DE3831667A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU622969B2 (en) * 1989-01-18 1992-04-30 Lucas Industries Public Limited Company Improvements in fluid-pressure operated boosters for vehicle braking systems
WO1998012086A1 (fr) * 1996-09-18 1998-03-26 Lucas Industries Public Limited Company Unite d'actionnement pour systeme de freinage de vehicule a commande electronique
US11306790B2 (en) 2015-06-29 2022-04-19 Goodrich Corporation Hybrid electric and hydraulic brake system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036744A1 (de) * 1990-11-17 1992-05-21 Teves Gmbh Alfred Unterdruck-bremskraftverstaerker
US5312173A (en) * 1993-05-28 1994-05-17 Alliedsignal Inc. Control valve actuator
US6135572A (en) * 1996-05-31 2000-10-24 Varity Gmbh Actuation unit for an electronically controlled vehicle brake system
DE19750977B4 (de) * 1997-11-18 2005-09-08 Daimlerchrysler Ag Bremsanlage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1162855A (en) * 1966-12-17 1969-08-27 Heinkel Ag Ernst Pneumatically-Hydraulically Operated Servo-Brake
FR2535662A1 (fr) * 1982-11-04 1984-05-11 Bosch Gmbh Robert Maitre-cylindre
EP0130501A2 (fr) * 1983-06-24 1985-01-09 Volkswagen Aktiengesellschaft Système de freinage hydraulique et/ou pneumatique pour véhicules automobiles
GB2162605A (en) * 1984-08-04 1986-02-05 Teves Gmbh Alfred Slip-controlled brake system
FR2574356A1 (fr) * 1984-12-08 1986-06-13 Bosch Gmbh Robert Servofrein combine a un dispositif antiblocage pour vehicule automobile
DE3619793A1 (de) * 1985-07-17 1987-01-22 Volkswagen Ag Druckmittelbetaetigte bremsanlage fuer kraftfahrzeuge
GB2198201A (en) * 1986-12-02 1988-06-08 Teves Gmbh Alfred Brake system for automotive vehicles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1162855A (en) * 1966-12-17 1969-08-27 Heinkel Ag Ernst Pneumatically-Hydraulically Operated Servo-Brake
FR2535662A1 (fr) * 1982-11-04 1984-05-11 Bosch Gmbh Robert Maitre-cylindre
EP0130501A2 (fr) * 1983-06-24 1985-01-09 Volkswagen Aktiengesellschaft Système de freinage hydraulique et/ou pneumatique pour véhicules automobiles
GB2162605A (en) * 1984-08-04 1986-02-05 Teves Gmbh Alfred Slip-controlled brake system
FR2574356A1 (fr) * 1984-12-08 1986-06-13 Bosch Gmbh Robert Servofrein combine a un dispositif antiblocage pour vehicule automobile
DE3619793A1 (de) * 1985-07-17 1987-01-22 Volkswagen Ag Druckmittelbetaetigte bremsanlage fuer kraftfahrzeuge
GB2198201A (en) * 1986-12-02 1988-06-08 Teves Gmbh Alfred Brake system for automotive vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU622969B2 (en) * 1989-01-18 1992-04-30 Lucas Industries Public Limited Company Improvements in fluid-pressure operated boosters for vehicle braking systems
WO1998012086A1 (fr) * 1996-09-18 1998-03-26 Lucas Industries Public Limited Company Unite d'actionnement pour systeme de freinage de vehicule a commande electronique
US11306790B2 (en) 2015-06-29 2022-04-19 Goodrich Corporation Hybrid electric and hydraulic brake system

Also Published As

Publication number Publication date
DE3831667A1 (de) 1990-03-22
DE58903711D1 (de) 1993-04-15
EP0360013B1 (fr) 1993-03-10

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